Longitudinal Electromagnetic Wave

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Anonymous Poster #1	Longitudinal Electromagnetic Wave 10/08/2016 5:38 AM
	Text book always teaching about transverse EM wave. Could you explain in detail and give example of longitudinal Electromagnetic wave. How come the electric and magnetic field are not perpendicular in logitudinal EM wave.
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SolarEagle Guru Join Date: Mar 2007 Location: by the beach in Florida Posts: 33392 Good Answers: 1817	#1 Re: Longitudinal Electromagnetic wave 10/08/2016 6:58 AM
	https://www.google.com/search?q=logitudinal+EM+wave&rlz=1C1PCTG_enUS441&oq=logitudinal+EM+wave&aqs=chrome..69i57&sourceid=chrome&ie=UTF-8#safe=off&q=longitudinal+EM+wave __________________ All living things seek to control their own destiny....this is the purpose of life
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Rixter Guru Join Date: Apr 2010 Location: About 4000 miles from the center of the earth (+/-100 mi) Posts: 9910 Good Answers: 1141	#2 Re: Longitudinal Electromagnetic wave 10/08/2016 9:37 AM
	Electromagnetic waves are traverse, i.e., the electric field vector and magnetic field vectors are perpendicular to each other and to the direction of propagation (the Pointing vector). Longitudinal electromagnetic waves don't exist. A longitudinal wave is not a solution to Maxwell's equations. However, there is another set of solutions that result in twisted waves. http://frankrayal.com/2012/05/20/twisted-waves-a-new-dimension-in-wireless-communication/
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Deefburger Guru Join Date: Mar 2011 Location: Sebastopol, California Posts: 1205 Good Answers: 54	#3 Re: Longitudinal Electromagnetic Wave 10/09/2016 2:31 PM
	The longitudinal wave is not electro-magnetic. It is magneto-dielectric. The text books don't teach magneto-dielectrics, even though much of the work by Steinmetz is based on it. Steinmetz literally wrote "the book" that is the basis of modern electronics but most of his work is left out of the texts. If you want to study longitudinal waves, study Steinmetz. __________________ Most people are mostly good most of the time.
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Rixter Guru Join Date: Apr 2010 Location: About 4000 miles from the center of the earth (+/-100 mi) Posts: 9910 Good Answers: 1141	#6 In reply to #3 Re: Longitudinal Electromagnetic Wave 10/12/2016 10:12 AM
	FYI, a paper about Maxwell's equations expressed as quaternion form: https://arxiv.org/pdf/math-ph/0307038v1.pdf I haven't had a chance to study this.
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Jpfalt Guru Join Date: May 2016 Posts: 1746 Good Answers: 87	#4 Re: Longitudinal Electromagnetic Wave 10/10/2016 11:22 AM
	Longitudinal electromagnetic waves go north-south, while latitudinal electromagnetic waves go east-west. Transverse electromagnetic waves is what happens when a regular electromagnetic wave takes to wearing high heels and a corset.
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Anonymous Poster #2	#5 In reply to #4 Re: Longitudinal Electromagnetic Wave 10/10/2016 1:01 PM
	Pretty bad but I got a good laugh out of it.
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Anonymous Poster (1); Deefburger (1); Jpfalt (1); Rixter (2); SolarEagle (1)

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